1. New program logo and icons
2. Heuristics for 0-day exploit detection now implemented in protection module for PRO version
3. Threats detected by the protection module are now quarantined automatically by default
4. Malwarebytes Anti-Malware now shows Windows 8 START screen notifications
5. Malwarebytes Anti-Malware now identified in scan logs, registry and About tab
6. More Tools tab enhanced with tons of new content and more to come in the future
7. Option to allow a threat to run temporarily (Allow Temporarily) added to filesystem protection prompts
8. Option to add a detected item to the Ignore List (Allow Always) added to filesystem protection prompts

Improvements:

1. Heuristics for detecting new and unknown threats improved
2. Scanner efficiency improved
3. Microsoft Windows 8 and Internet Explorer 10 now identified correctly in scan logs
4. Help file updated to include information on new features
5. Better compatibility with many other security products in realtime